2 NO + 2 NC Contact Configuration
Provides two normally open and two normally closed auxiliary contacts for control circuit expansion.
SIEMENS
SIEMENS 3RH1921-1HA22 Contactor 2NO 2NC 10A
$21.20
Available
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SIEMENS
SIEMENS 3RH1921-1HA22 Contactor 2NO 2NC 10A
PRODUCT PRICE
USD
$21.20
Available to order
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PRODUCT DOCUMENTATION
Product Information
Technical specifications, features, applications and purchasing information.
Technical Specifications
| Brand | SIEMENS |
| Model Number | 3RH1921-1HA22 |
| Product Category | Contactor |
| Product Series | SIRIUS 3RH1 |
| Module Type | Auxiliary Switch Block |
| Contact Configuration | 2 NO + 2 NC |
| Number of Poles | 4 |
| Standard | DIN EN 50012 |
| Terminal Type | Screw Terminal |
| Mounting Style | Snap Front |
| Compatible Contactors | Motor Contactors Size S0 to S3 |
Key Features
4-Pole Design
Four-pole auxiliary switch block conforming to DIN EN 50012.
Snap Front Mounting
Snap front mounting style for quick attachment to compatible contactors.
Screw Terminal Connection
Equipped with screw terminals for secure electrical connections.
S0 to S3 Contactor Compatibility
Designed for use with motor contactors in sizes S0 through S3.
Applications
- Auxiliary contact expansion for motor contactors
- Control circuit signaling and interlocking
- Motor starter assemblies
- Industrial control panel wiring
- Contactors requiring additional NO/NC contacts
- Machine control and automation systems
- Pump and fan control circuits
- Maintenance and retrofit of contactor installations
Purchase Information
We support online purchase of the SIEMENS 3RH1921-1HA22 Contactor. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.
Frequently Asked Questions
What is the SIEMENS 3RH1921-1HA22? It is a SIRIUS 3RH1 auxiliary switch block with 2 NO + 2 NC contacts for motor contactors.
What is the contact configuration? The auxiliary switch block has 2 normally open (NO) and 2 normally closed (NC) contacts.
How many poles does it have? It is a 4-pole device.
What standard does it conform to? It conforms to DIN EN 50012.
What is the terminal type? The module uses screw terminals.
What is the mounting style? It features snap front mounting.
Which contactors is it compatible with? It is designed for motor contactors in sizes S0 to S3.
What should be checked before ordering? Confirm the contactor size, required auxiliary contact configuration, and terminal type for your control circuit.
Need help confirming a model?
Send us your part number and technical requirements.
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